(moved) Stronger - Yet Another Extruder Filament Drive

THIS DESIGN HAS BEEN MOVED TO YOUMAGINE:
https://www.youmagine.com/designs/stronger-yet-another-extruder-filament-drive
Reasons:
http://marcuswolschon.blogspot.de/2014/01/leaving-thingiverse.html

Stronger idler arm for "Yet another extruder filament drive"
(Extruder for Thing-o-Matic and earlier Makerbot Industries printers)

Changes:
* thicker front side
* gave proper names to parametric steps
* LONG HOLE, so the pressure bolt can come at an angle
* wider long hole, so an M